Valve.



A. W. MORSE.

VALVE.

I I APPLIQATION FILED MAY 6, 1913. Y 1,1 1 1,399, Patented Spt. 22,1914.

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ALBERT w. MoEsE, or NEW Yonx, N. Y., AssrGNoE To NATHAN MANUFACTURINGcoMrANY, or NEW Yoiur, N. Y., AcolaroEATIoN or NEW Yom;

VALVE.

Bpecioation ot I-Letters Patent.

'raten-tea sept. 22,1914.

Application mea' my e, isis. semi No. 765,735.

To all whom it may concern:

Be it known that I, ALBERT W.- Mensili, a citizen of the Unitedl States,residing at New York, in the county of New York and State of New York,have invented certain new and useful Improvements in Yalves, of whichthe following is a speciiication.

rl`his invention relates to valves, and may be embodied in gate,eccentric, swivel, and other types of valves well known to the art. Forthe pur oses of this descri tion there is shown a rocking valve', merelyecause the nature of the invention may be readily perceived from its aplication to such a valve.

Broadly, the o ject of the'invention is to rovide simple and substantialmeans whereby the efficiency of valves in service, and

. their service life, is increased, while at the same time the cost d fmaintenance is decreased. How these desirable results are accomplishedwill in some particulars be speciicallypointed out hereinafter, and.will be otherwise apparent from the following description of arts,relations, and operations incident to t e invention.

In the accompanying, drawings, Vwhich form a part of this specification,Figure 1 is a vertical cross Esection through a valve of the rockingtype; Fig. 2 is a horizontal section on the plane of the line 2-2 inFig. 1, anda plan of the parts beneath the section plane.

There is shown in the drawings a valve casing preferably made in twocomplementary parts, 4 and 5, secured in proper` relation by means ofbolts 6. There are alined transverse ports 7 and 8 inthe casing members4 and 5, respectively, the port being the inlet port and the'port 8 theoutlet port. At the inner end of the outlet ort 8, the casing member 5is formed wit a valve seat 9, and with an extension having a surface 10in the same plane as suoli valve seat. Near the inlet port 7 of thecomplementary casing member 4 there is provided a shoulder 11, againstwhich one end of a tubular member, or sleeve, 12, is adapted to abut,said sleeve being slidable within the bore 14 is somewhat enlarged atits inner end, to accommodate a packing 16 which is forced between thebore 14' and the sleeve 12 bly means of acoiled spring 17v surrounding te sleeve 12, and bearing at one end against the packin 16 and at theother end against an outwar ly extendin annular -ilange 18 at the innerend of the eeve 12. Preferably the bore of the sleeve 12 is everywherecf less diameter than that ofthe inlet port 7, including the annularshoulder 11, and the interior diameter of the sleeve 12 also preferablydecreases toward its inner end, so that thel tendency of the pressure ofthe iiuid entering the port 7 will be to move the sleeve inwardly,assisting the expansible force of the spring 17. Furthermore, with thisarrangement, the fluid entering the device together with such foreignmatter as it may contain, is diverted toward the center of the sleeveand correspondingly throu h the outlet port 8 and away from the va veseat 9 thus protecting the latter against wear and undesirableaccumulations ofl such foreign matter. The inner end of' the sleeve 12is formed into a valve ,seat 19, similar to the valve seat 9 in thecasing member 5, and this sleeve 12 is also provided with a lateralextension having a surface 20 in the. same .plane as the valve seat 9.The valve which coperates with the valve seats 9 and 19 comprises twosimilar disks or parts 21 and 22, each ofwhich has a face conforming toone of the valve' seats. The valve made u 'of thesevtwo disks is movedinto position Vetween the Valve seats 9 and 19 by suitable means such asan arm 24 which has an opening through it indicated at 25. Each valvedisk 21 and 22 has a boss extending into this aperture 25, so that thebosses of the disks bear againstl each other while, at the same time,neither disk bears against the arm 24. The opposed faces of the bossesare preferably convex and arcuate, as shown, so that there is the leastpossible friction between them, and one may rotate relatively to theother. Furthermore, the two disks are, by this structure, renderedindependently self-adjustable on their seats. The arm 24 has at one endan extension 26 which serves, by its engagement with the inner wall -ofthe casing member 4, as a means for limitin the travel of the arm. Theother end of t e arm-24 has a squared openinggin which isengaged asquared part o a spindle 27, which passes not onl through the arm 24 butalso loosely throug the lateral extension 20 of the sleeve 12.

. turnin V rection is prevented by the engagement of At one side of thearm 24 the s indle has a collar 28, bearing a ainst a sur ace of thecasing member-5 1n t e plane of the valve seat 9. Preferably suchopposed surfaces are accuratel ground. The outer end ofthe spindle 2projects from the casing member 5,' and' withinthe casing member 5 thereis preferably provided a packing 29 aboutthe spindle. A packing screw 30enters the casing member 5 and 'engages the packing 29, whereby leakageabout the spindle may be further minimized. At its outer end thelspindle may be tted with a lever 31 for As t e valve spindle is turnedthe arm 24 moves with Ait to bring the valve disks 21 and 22 intoposition to o en or close the ports 7 and 8 to each ot er. When thedisks are in the closed position, shown in Fig. 1, the movement of suchdisks in one di the arm extension 26 with the wall of the casing member4. As the spindle is o erated -to uncover the ports, the valve dis sride over the surfaces 10 and 20 which are in the planes, respectively,of the valve seats 9 and 19, whereby the seating faces of the disks lareground during all their movements.

Furthermore, since the disks 21 and 22 are free to rotate with respectto each other, uniform grinding of their seating, faces is assured. Thesleeve 12 is held against material forward movement when the valve isunder spring pressure, or under combined sprmg pressure and fluid'pressure, the mova le seat 19 engages the disk 21 which, through thebosses on the two disks, transmits the pressure to the disk 22, which isthereby forced against the stationary seat 9.

Such movable valve seat 19 therefore acts as an additional or protectiveseat to assist the primar or main seat located at the outet si e of thevalve. Also, it forces the valve disks to their seats when the ports areopen, or when little or no fluid pressure is available for this pu ose.The wear of both' valve disks and oth valve seats is automatically takenu chattering is prevented, as well as t e lodging of foreign matterbetween Vthe disks and seats, and the disks and seats are self grindingduring the normal operations of opening and closing the ports. Since thedisk 21 receives the pressure of the spring orof the fluid and transmitssuch pressure directly'to the disk 22 and the seat 19 with out affectingat all the arm 24, the arm 24 is, as a consequence, under no strain atall except thatV due to the normal operations of opening and closing.

What I claim is:

the combination -with a casin having op ositelydisposed inlet and out etports, of a valve seat for each port, one of said valve seats beingmovable toward andv from the other, means for moving the movable seattoward the other seat, an arm movable to and from a position between theseats, and valve disks located on opposite sides of the arm andinterlocked therewith, said disks having a bearing against each otherloosely in the arm, bein capable of relative rocking movement an ofmovement transversel of the arm and coacting respectively wit the seats,the movable seat constituting .means for properly seating both thedisks.v

and from the'other, means for moving the movable seat toward said otherseat, an arm movable toward and from a positlon between the seats, andvalve disks located on olpposite sides of the arm and interlocked l terewith and bearing against each other, said disks being capable ofrelative rocking movement and of movement transversely of the arm andcoacting respectivel with the seats, the movable seat having a irectpressure a ainst both disks and constituting means orl roperly seatingboth disks.

3. In a eviceof the character set forth, the combination with a casinghaving a port, of a valve seat slidably mountedin the port, means forurging the seat inwardly, said seatl havin an extension on one side, anda valve sli able on the seat and the extension to and from a osition toclose the port, said valve when t e port isuncovered resting on theextension at one side of the seat and holding said seat against abnormalinward movement.

4. In a device of the kind described, a casing having alined inlet andoutlet ports and a stationary valve seat surrounding the outlet port, atubular member slidable in the inlet port and having a valve seat andan. outwardly extending flange about its inner end, packing betweenrsaidtubular member and the adjacent wallA ofthe 'inlet port, a

`spring bearing between the flange and the packing and urging thetubular member to movement in an mwarddirection, and a valve partcoperative with the Yvalve seat of the tubular member.

5. In a device of the kind described, a. casing having alined inlet andoutlet ports and a stationary valve seat surrounding the outlet port, atubular member slidable .in the inlet port andhaving a valve seat and anoutwardly extending flange about its `port, a spring bearing be tubularmember,

' member and the adjacent wall o the inlet port, a spring bearing vexsurfaces bearing on each other, and an arm having portions between -andspace inner end, packing between said tubular member and the adjacentwall of the inlet parts, and having another portion engaging the bearing.portions thereof.

8. In a device of the kind described, a casnghaving alined inlet andoutlet ports, a tubular member slidable in having a valve seatcontrolling the inlet port, the tubular member having a lateralextension with a surace in the plane of the valve seat, a valve partcoperative wit the valve seat, an. arm valve part, and a spindle passingthrough and keyed to the arm having a bearing in the extension of thetubulanmember.

9. The combination with va vvalve casing having an inlet and an outlet,a member slidably mounted on the. inlet, a Valve member operatingagainst the tubular member, and operating means for the valve memberhaving an engagement with sleeve member. v

10. In a device of the character set forth, the combination with spacedoppositely disposed valve seats that are relatively movable toward andfrom eachother, of means for relatively urging the seats toward eachother, oppositely disposed valve elements coacting respectively with theseats and bearing against each other, said valve elements being'movabletogether to and from operative positions against the seats, and beingrelatively rotatable and capable of relative tilting movement, and meansor moving the valve elements to and from their seated positions,

tion, a valve part coperative with the valve seat ofthe tubular member,and a secon valve part against which the rst bears and which in turnbears against the stationary valve seat.

6; In a device of the kind described, a casing having alined'inlet andoutlet ports and a stationary valve seat surrounding the outlet port, atubular member slidable in the inlet port and having a valve seat and anoutwardly extending ange about itsend, packing between said tubularmember and the adjacent wall of theinlet between the flange and thepacking urging the .tubular member to movement in an inward direction, avalve part coperatiye with the valve seat of the and a. second valvepart against which the rst bears and which in turn bears against thestationary valve seat, the two cvalve parts being opposed to each otherand having portions wlth' convex suraces bearing on each other.

7 In `a device of the kind' described, a casing having alined inlet andoutlet ports and a stationary valve seat surrounding the outlet port, atubular member slidable in the inlet port and having a valve seat and anoutwardlyv extending flange about its inner end, said flange having anon one side, packing between said tubular port, a spring bearing and thepacking and urging the tubular member to movement in an inwarddirection, a valve part coperative with the valve'seat of the tubularmember, and movable over the extension of the flange a second valve seatagainst which the first bears and which in turn bears against thestationary valve seat, the two valve parts being opposed to each otherand having portions with conbetween the flange sure caused by therelative movement of t e valve seats, to maintain them properly seatedby such relative movement. j

In testimony whereof I aiix my signature in presence o two witnesses.

ALBERT W. MORSE.

Witnesses:

CLARENCE G. CAMPBELL,

MARY H. LEWIS.

the casing and 5 from the opposed faces of the two valve for actuating cthe tubular the said valve elements being also movable together underthe direct pres- 8

